Updated April 6, 2020. How to wear a mask. Why are some young people being hit hard by COVID-19? The scramble among states for protective personal equipment. Hydroxychloroquine update. Domestic violence increases. COVID-19 in animals.

This newly discovered fossil is a hugely important find, say scientists. It means that one of our earliest ancestors possibly originated in southern Africa. Read more

John Burroughs – born in 1837 – was one of the 1st nature writers. He said: “I go to nature to be soothed and healed, and to have my senses put in order.”

Behind every government announcement, there is an army of epidemiologists predicting how the virus will spread, and how to beat it. Note that this story doesn’t deal specifically with the University of Washington models released yesterday, projecting U.S. infections and deaths from COVID-19 in the coming months. But it does provide insights into how scientists create models.

Scientists have developed a new prototype of nighttime solar cells that can produce electricity at night through a radiative cooling mechanism.

A roundup of information from physicians, scientists and journalists.

Explore NASA’s online activities, e-books, podcasts and other content.

With no vaccines or treatments, the fight against coronavirus comes down to this behavioral technique. A physician explains how it works.

And 2020’s first Friday the 13th is coming up on March 13. It’ll be exactly 13 weeks after the previous Friday the 13th in December 2019. Zoinks!

The Ides of March are March 15. We in modern times probably wouldn’t know about them – or know we’re supposed to beware of them – if it weren’t for William Shakespeare.

The Toba super-volcano eruption 74,000 years ago was 5,000 times larger than that of Mount St. Helens. Somehow, ancient human populations in India survived it.